I couldn't agree more. The last time I ran Ubuntu as my primary OS its desktop experience was a long ways from Windows or OSX. Compviz was full of bugs that in my opinion significantly detracted from the the overall desktop experience. I'd constantly run into problems where windows wouldn't be placed correctly on the screen or would have artifacts drawn in them. Some of the compviz effects would fail to run altogether - with almost no indication of why. On top of that I found the general desktop performance to be much slower than Windows and OSX. Specific examples of this would include: hiding/restoring/maximizing windows, scrolling through text and graphics, and moving windows. Add to that performance issues in firefox (which have been well documented), incomplete drivers (sleeping, graphics drivers, etc), and the obvious compatibility problems with running linux. Ubuntu is still more frustration than it's worth for a desktop OS imho.
